1*0a6a1f1dSLionel Sambuc; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=sse2 -mcpu=corei7 -o /dev/null 2*0a6a1f1dSLionel Sambuc 3*0a6a1f1dSLionel Sambuc; Revision 199135 introduced a wrong check in method 4*0a6a1f1dSLionel Sambuc; DAGCombiner::SimplifyVBinOp in an attempt to refactor some code 5*0a6a1f1dSLionel Sambuc; using the new method 'BuildVectorSDNode::isConstant' when possible. 6*0a6a1f1dSLionel Sambuc; 7*0a6a1f1dSLionel Sambuc; However the modified code in method SimplifyVBinOp now wrongly 8*0a6a1f1dSLionel Sambuc; checks that the operands of a vector bin-op are both constants. 9*0a6a1f1dSLionel Sambuc; 10*0a6a1f1dSLionel Sambuc; With that wrong change, this test started failing because of a 11*0a6a1f1dSLionel Sambuc; 'fatal error in the backend': 12*0a6a1f1dSLionel Sambuc; Cannot select: 0x2e329d0: v4i32 = BUILD_VECTOR 0x2e2ea00, 0x2e2ea00, 0x2e2ea00, 0x2e2ea00 13*0a6a1f1dSLionel Sambuc; 0x2e2ea00: i32 = Constant<1> [ID=4] 14*0a6a1f1dSLionel Sambuc; 0x2e2ea00: i32 = Constant<1> [ID=4] 15*0a6a1f1dSLionel Sambuc; 0x2e2ea00: i32 = Constant<1> [ID=4] 16*0a6a1f1dSLionel Sambuc; 0x2e2ea00: i32 = Constant<1> [ID=4] 17*0a6a1f1dSLionel Sambuc 18*0a6a1f1dSLionel Sambucdefine <8 x i32> @reduced_test_case() { 19*0a6a1f1dSLionel Sambuc %Shuff = shufflevector <8 x i32> zeroinitializer, <8 x i32> zeroinitializer, <8 x i32> <i32 1, i32 3, i32 undef, i32 7, i32 9, i32 11, i32 13, i32 15> 20*0a6a1f1dSLionel Sambuc %B23 = sub <8 x i32> %Shuff, <i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1> 21*0a6a1f1dSLionel Sambuc ret <8 x i32> %B23 22*0a6a1f1dSLionel Sambuc} 23*0a6a1f1dSLionel Sambuc 24